Fix Redis sensors when server is not on default port
Upgrade RedisStore to version 2.8.4.
Fix typos in archetype and JBoss7 entity

Removes mentions of datastax-healthcare from archetype.
Stronger assertions in Redis tests and more permissive bounds in test util method signature
Merge pull request #1162 from sjcorbett/fix/redis-stats

Fixes RedisStore to use correct port for sensor commands